Distinguish between Reptilia, Amphibia and Aves.
Distinguish between Reptilia, Amphibia and Aves.
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| Reptilia | Amphibia | Aves |
| Members of Reptilia are terrestrial, with few exceptions. | Members of Amphibia live on land as well as in water. | Aves are terrestrial and aquatic. |
| They are poikilothermic. | They are poikilothermic. | They are homeothermic. |
| All reptiles have three chambered heart, except for crocodiles. | They have three chambered heart. | They have fourchambered heart. |
| Olfactory lobes and cerebellum are better developed than those of amphibians. | Olfactory lobes and cerebellum are less developed as compared to reptiles. | Cerebellum is well developed for equilibrium. |
| Skin is dry, nonglandular and covered by scales and plates. | Skin is moist, glandular with mucous glands. | Skin is thin, dry, non-glandular except oil gland at the base of tail. |
| Digits bear claws. | Digits do not bear claws. | Digits bear claws. |
| Exoskeleton bears epidermal scales or scutes, shields or plates. | Exoskeleton is absent. | Exoskeleton is made up of feathers. |
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